updated contributors list

Former-commit-id: df288474b08173fa076fd67fd84188d3cfe44869

README.MD

@@ -134,6 +134,7 @@ See https://github.com/gildas-lormeau/SingleFile/blob/master/privacy.md
 - Japanese translation done by Shitennouji（四天王寺) (https://github.com/Shitennouji)
 - Polish translation done by xesarni (https://github.com/xesarni)
 - Russian translation done by rstp14 (https://github.com/rstp14), kramola-RU (https://github.com/kramola-RU)
+- Ukrainian translation done by perdolka (https://github.com/perdolka)
 - Spanish translation done by strel (https://github.com/strel)
 
 ## Code derived from third party projects

extension/ui/pages/help.html

@@ -125,10 +125,10 @@
 					</li>
 					<li data-options-label="openEditorLabel"> <span class="option">Option: edit page before
 							saving</span>
-						<p>Check this option to open the annotation editor before saving any page. Checking this option 
+						<p>Check this option to open the annotation editor before saving any page. Checking this option
 							removes the entry "Annotate and save the page..." from the context menu.</p>
 						<p class="notice">It is recommended to <u>uncheck</u> this option</p>
-					</li>					
+					</li>
 					<li data-options-label="confirmInfobarLabel"> <span class="option">Option: open a prompt dialog to
 							edit the infobar content</span>
 						<p>Check this option to display a prompt dialog in order to confirm the infobar content before
@@ -509,6 +509,8 @@
 					</li>
 					<li>Russian translation done by rstp14 (<a href="https://github.com/rstp14">GitHub profile</a>),
 						kramola-RU (<a href="https://github.com/kramola-RU">GitHub profile</a>)</li>
+					<li>Ukrainian translation done by perdolka (<a href="https://github.com/perdolka">GitHub
+							profile</a>)</li>
 					<li>Spanish translation done by strel (<a href="https://github.com/strel">GitHub profile</a>)</li>
 				</ul>
 			</li>